Spring-hinge.



PATENTED MAY l2, 1903.

H. B. SARGENT. SPRING HINGE.

APPLIoATIoN FILED 00T. 21, 189e.

no MOMI..

W/TNESSES;

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Unirse STATES Patented May 12, 1903.

.PATENT OFFICE.

HENRY B. SARGENT, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO SARGENT & COMPANY, OF NEW HAVEN, CONNECTICUT, A CORPO- RATION OF CONNECTICUT.

SPRING-HINGE.

eesorroarrolv forming tart of Letters rareza No. 727,697, dated May 1e, 1903. Y Application filed October 21,1898. Serial No. 694,204.. (No model.) l

To all whom traag/concern:

Be it known that I, HENRY B. SARGENT, of the city and county of New Haven, in the State of Connecticut, have invented new and useful Improvements in Spring-Hinges, of which the following is a full, clear, and exact'description, when-taken in connection with the accompanying drawings, which form a part thereof, and in which-- Figure l represents a vfront elevation of a spring-hinge embodying my invention; Fig. 2, a View, partly in vertical section, partly in elevation, of one of the barrels of the-hinge; Figs. 3 and 4, horizontal sections on lines 3 3 of Fig. l, the outer leaves ofthe hinge Vbeing shown indifferent positions and Fig. 4 showing a modification of the central leaf.

In all figures similar letters of reference represent like parts.

This invention relates to wrought metal spring-hinges, and more particularly to that class of spring-hinges known as double-acting, whereby the door to which it is attachedV is enabled to swing in two directions. N

The invention consists in the various improvements in the construction of the hinge, as more particularly set forth hereinafter, whereby a simpler, more efficient, and durable hinge is provided.

Referring to the drawings, the parts designated by the letter A represent the two outer leaves of a spring-hinge, which are adapted to be secured to the door and door-faine by screws through screw-holes ct, while the part B represents the central leaf of the hinge, which is formed integral with the two springcontaining barrels C and C in the following manner: A single blank of sheet metal extends, as shown in cross-section in Figs. 3 and 4, from a point b toward the barrel C, forming the portion b and the barrel C. The

blank extends back from the barrel C, parallel and contiguous to the portion b, forming a'second thickness or web b2 of the central leaf. At the opposite end of the leaf the blank forms the second barrel C and extends to and terminates at the point b', where the portion b begins, forming the portion b3 of the central leaf, parallel and contiguous to the portion b2 and on the same line with the portion b, with which it makes a single thickness of metal. By this construction the central leaf is formed integral with the two barrelsand consists only of two thicknesses of metal. The one thickness or web b2 is continuous and integral with -th'e barrels C and C', whilethe other web is formed of the two end portions b and b3, which extend from the barrels and terminate on the same straight line on the same side of the web at the point b, which is shown herein at substantially the middle of the central leaf, but may obviously be at themost convenient point.

If for any particular class ofwork it is desirable to increase the strength of the central leaf, a reinforcing-plate D, as shown in crosssection, Fig. 4, is placed over the meeting ends Yof the blank forming the leaf and barrel portions and riveted to the central leaf.

Within the barrels C and C' are located helical springs, which may be of the double form shown -in Fig. 2, wherein a smaller or .interior spring E is included within a larger or exterior spring E.

At the two ends of the springs E'and E are spring-holders F and F',

Vto which the springs are rigidly secured, the spring-holder F' being'ftted into and rigidly secu red by studs or other means in the end of the barrel, Vwhile' the other, F, extendsinto the barrel, but isfre'e to rotate independent thereoff The spring-holder E is of equal diameter with the barrel and is provided with radially-extending holes f for a stop-pin G and a reduced portion, which forms with the body of the holder a shoulder f, adapted to be seated on the upper edge of the barrel. Both spring-holders F and F' are provided with double annular recesses f2 and f3 for the ends of the spring. By this construction one end of the spring isheld rigid'with the barrel, while the other end is capable of being turned independent of the barrel. by the movable spring-holder F, which in turn is rigidly conl nected to the outer leaf A by having the stoppin G bear against the inner edge a of the outer leaf or leaves, asshown in Fig. l.

The connection between the outer leaves A and the central leaf C is as follows: The outer leaves A are provided at their upper and lower edges with flanges a3, bent at right an- IOO gles to the plane of the leaves and which are prolonged beyond the inner edges of the leaves to form bearings a4 for the pintle or pintles H, which extend through said bearings, as shown hereinafter, and through axial perforationsf4in the spring-holders. Between the bearings a4 of the outer leaves A and the spring-holders F and F', which close the ends of the barrels C and C', are interposed washers K, consisting of inner cores 7c, of steel or other metal, and an outer covering 7c', of wrought metal, Fig. 2. As the spring-holders F and F are also formed of steel, the bearing-surfaces of the washers K and springholders are of hard metal. In the Washers K are axial perforations k2 for hollow sleeves L, which project through and beyond the bearings a4 of the outer leaves. Beyond the bearings a4 the -sleeves L have annular flanges Z, adapted to fit against the outer faces of the bearings a4, while the lower ends of the sleeves are turned upward to bind by frictional contact the washers K. By this means the washers K are bound to the bearings a4 of the leaves A to rotate therewith and independent of the barrels C and C', While a hard-metal bearing is provided for the meeting surfaces of the parts which rotate thus independent of each other.

The outer ends of the sleeves L are externally screw-threaded, as shown at Z', for the detachable caps M, which are correspondingly internally threaded. Hollow washers N are fitted over the annular flanges Z between the caps M and the bearings a4. The pintles H, which extend through the barrels and spring-holders, also project through the sleeves L and have their ends spun down on the outer end of the sleeves L, as shown at h in Fig. 2, so that they will rotate with the sleeves and with the outer leaves A.

The leaves A are provided with short studs O on their inner surfaces, which when the hinge is closed (or, in other Words, the outer leaves folded on the central leaf by the springs) are adapted to abut against the central leaf B, Fig. 3, to hold the outer leaves Ain a position parallel to each other and to the central leaf. Therefore when the hinge is secured in place the door and jamb will be in proper position relative to each other for the most efficient operation of the hinge.

Having described theinvention, which may vary somewhat in construction Without departing from the spirit thereof, what I claim, and desire to secure by Letters Patent, is-

l. In a spring-hinge, the combination with the spring-containing barrel; of hard-metal spring-holders closing the ends of the barrel; a leaf having flanged bearings extending at right angles thereto; hard-metal Washers between said bearings and spring holders; sleeves extending through said bearings and washers and provided with flanges to bind the same together by frictional contact; caps adapted to be screwed onto the outer ends of said sleeves; and pintles extending through said barrel, spring-holders and sleeves into said caps, substantially as described.

2. In adouble-actingspring-hinge, the coinbination with a central leaf; of two outer leaves; suitably -located springs normally tending to fold the outer leaves upon the central leaf; and stops on the said outer leaves adapted to abut against said inner leaf to hold said leaves in a position parallel to each other when folded, substantially as described.

In witness whereof I have hereunto set my hand this 13th day of October, A. D. 1898.

HENRY B. SARGENT.

Witnesses:

ELIZABETH K. PENDLETON, SAMUEL H. FISHER. 

